From what I can tell, you’ve got multiple issues going on here. First, it doesn’t look like you’re in the BP for the gear you want to turn, because you’re trying to call it’s mesh. If you are in the gear BP, just drag out your mesh component to get a reference to it. If you are NOT in your gear BP, you’ll have to cast to your gear BP, and then get a reference to the mesh off of the return pin.
Next, I think you have it right where you multiply your tick seconds by your impulse. To simplify your code though, simply right click on the Torque pin on the Add Torque function, split it, and plug your float value from the multiply function directly into the Torque axis you want. No need to use Make Vector or Get Transform. Here’s my code from a tutorial I did a while back. This is from calling the torque with the keyboard.
